usr.sbin/wlandebug/wlandebug.c

   1 /*-
   2  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification.
  11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
  13  *    redistribution must be conditioned upon including a substantially
  14  *    similar Disclaimer requirement for further binary redistribution.
  15  *
  16  * NO WARRANTY
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
  20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
  22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  27  * THE POSSIBILITY OF SUCH DAMAGES.
  28  *
  29  * $FreeBSD: src/usr.sbin/wlandebug/wlandebug.c,v 1.11 2009/07/17 21:11:08 sam Exp $
  30  */
  31
  32 /*
  33  * wlandebug [-i interface] flags
  34  * (default interface is wlan.0).
  35  */
  36 #include <sys/types.h>
  37 #include <sys/sysctl.h>
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <ctype.h>
  42 #include <getopt.h>
  43 #include <string.h>
  44 #include <err.h>
  45
  46 #define N(a)    (sizeof(a)/sizeof(a[0]))
  47
  48 const char *progname;
  49
  50 #define IEEE80211_MSG_11N       0x80000000      /* 11n mode debug */
  51 #define IEEE80211_MSG_DEBUG     0x40000000      /* IFF_DEBUG equivalent */
  52 #define IEEE80211_MSG_DUMPPKTS  0x20000000      /* IFF_LINK2 equivalant */
  53 #define IEEE80211_MSG_CRYPTO    0x10000000      /* crypto work */
  54 #define IEEE80211_MSG_INPUT     0x08000000      /* input handling */
  55 #define IEEE80211_MSG_XRATE     0x04000000      /* rate set handling */
  56 #define IEEE80211_MSG_ELEMID    0x02000000      /* element id parsing */
  57 #define IEEE80211_MSG_NODE      0x01000000      /* node handling */
  58 #define IEEE80211_MSG_ASSOC     0x00800000      /* association handling */
  59 #define IEEE80211_MSG_AUTH      0x00400000      /* authentication handling */
  60 #define IEEE80211_MSG_SCAN      0x00200000      /* scanning */
  61 #define IEEE80211_MSG_OUTPUT    0x00100000      /* output handling */
  62 #define IEEE80211_MSG_STATE     0x00080000      /* state machine */
  63 #define IEEE80211_MSG_POWER     0x00040000      /* power save handling */
  64 #define IEEE80211_MSG_HWMP      0x00020000      /* hybrid mesh protocol */
  65 #define IEEE80211_MSG_DOT1XSM   0x00010000      /* 802.1x state machine */
  66 #define IEEE80211_MSG_RADIUS    0x00008000      /* 802.1x radius client */
  67 #define IEEE80211_MSG_RADDUMP   0x00004000      /* dump 802.1x radius packets */
  68 #define IEEE80211_MSG_MESH      0x00002000      /* mesh networking */
  69 #define IEEE80211_MSG_WPA       0x00001000      /* WPA/RSN protocol */
  70 #define IEEE80211_MSG_ACL       0x00000800      /* ACL handling */
  71 #define IEEE80211_MSG_WME       0x00000400      /* WME protocol */
  72 #define IEEE80211_MSG_SUPERG    0x00000200      /* Atheros SuperG protocol */
  73 #define IEEE80211_MSG_DOTH      0x00000100      /* 802.11h support */
  74 #define IEEE80211_MSG_INACT     0x00000080      /* inactivity handling */
  75 #define IEEE80211_MSG_ROAM      0x00000040      /* sta-mode roaming */
  76 #define IEEE80211_MSG_RATECTL   0x00000020      /* tx rate control */
  77 #define IEEE80211_MSG_ACTION    0x00000010      /* action frame handling */
  78 #define IEEE80211_MSG_WDS       0x00000008      /* WDS handling */
  79 #define IEEE80211_MSG_IOCTL     0x00000004      /* ioctl handling */
  80 #define IEEE80211_MSG_TDMA      0x00000002      /* TDMA handling */
  81
  82 static struct {
  83         const char      *name;
  84         u_int           bit;
  85 } flags[] = {
  86         { "11n",        IEEE80211_MSG_11N },
  87         { "debug",      IEEE80211_MSG_DEBUG },
  88         { "dumppkts",   IEEE80211_MSG_DUMPPKTS },
  89         { "crypto",     IEEE80211_MSG_CRYPTO },
  90         { "input",      IEEE80211_MSG_INPUT },
  91         { "xrate",      IEEE80211_MSG_XRATE },
  92         { "elemid",     IEEE80211_MSG_ELEMID },
  93         { "node",       IEEE80211_MSG_NODE },
  94         { "assoc",      IEEE80211_MSG_ASSOC },
  95         { "auth",       IEEE80211_MSG_AUTH },
  96         { "scan",       IEEE80211_MSG_SCAN },
  97         { "output",     IEEE80211_MSG_OUTPUT },
  98         { "state",      IEEE80211_MSG_STATE },
  99         { "power",      IEEE80211_MSG_POWER },
 100         { "hwmp",       IEEE80211_MSG_HWMP },
 101         { "dot1xsm",    IEEE80211_MSG_DOT1XSM },
 102         { "radius",     IEEE80211_MSG_RADIUS },
 103         { "raddump",    IEEE80211_MSG_RADDUMP },
 104         { "mesh",       IEEE80211_MSG_MESH },
 105         { "wpa",        IEEE80211_MSG_WPA },
 106         { "acl",        IEEE80211_MSG_ACL },
 107         { "wme",        IEEE80211_MSG_WME },
 108         { "superg",     IEEE80211_MSG_SUPERG },
 109         { "doth",       IEEE80211_MSG_DOTH },
 110         { "inact",      IEEE80211_MSG_INACT },
 111         { "roam",       IEEE80211_MSG_ROAM },
 112         { "rate",       IEEE80211_MSG_RATECTL },
 113         { "action",     IEEE80211_MSG_ACTION },
 114         { "wds",        IEEE80211_MSG_WDS },
 115         { "ioctl",      IEEE80211_MSG_IOCTL },
 116         { "tdma",       IEEE80211_MSG_TDMA },
 117 };
 118
 119 static u_int
 120 getflag(const char *name, int len)
 121 {
 122         int i;
 123
 124         for (i = 0; i < N(flags); i++)
 125                 if (strncasecmp(flags[i].name, name, len) == 0)
 126                         return flags[i].bit;
 127         return 0;
 128 }
 129
 130 static void
 131 usage(void)
 132 {
 133         int i;
 134
 135         fprintf(stderr, "usage: %s [-d | -i device] [flags]\n", progname);
 136         fprintf(stderr, "where flags are:\n");
 137         for (i = 0; i < N(flags); i++)
 138                 printf("%s\n", flags[i].name);
 139         exit(-1);
 140 }
 141
 142 static void
 143 setoid(char oid[], size_t oidlen, const char *wlan)
 144 {
 145         if (wlan)
 146                 snprintf(oid, oidlen, "net.wlan.%s.debug", wlan+4);
 147         else
 148                 snprintf(oid, oidlen, "net.wlan.debug");
 149 }
 150
 151 int
 152 main(int argc, char *argv[])
 153 {
 154         const char *cp, *tp;
 155         const char *sep;
 156         int op, i;
 157         u_int32_t debug, ndebug;
 158         size_t debuglen;
 159         char oid[256];
 160
 161         progname = argv[0];
 162         setoid(oid, sizeof(oid), "wlan0");
 163         if (argc > 1) {
 164                 if (strcmp(argv[1], "-d") == 0) {
 165                         setoid(oid, sizeof(oid), NULL);
 166                         argc -= 1, argv += 1;
 167                 } else if (strcmp(argv[1], "-i") == 0) {
 168                         if (argc < 2)
 169                                 errx(1, "missing interface name for -i option");
 170                         if (strncmp(argv[2], "wlan", 4) != 0)
 171                                 errx(1, "expecting a wlan interface name");
 172                         setoid(oid, sizeof(oid), argv[2]);
 173                         argc -= 2, argv += 2;
 174                 } else if (strcmp(argv[1], "-?") == 0)
 175                         usage();
 176         }
 177
 178         debuglen = sizeof(debug);
 179         if (sysctlbyname(oid, &debug, &debuglen, NULL, 0) < 0)
 180                 err(1, "sysctl-get(%s)", oid);
 181         ndebug = debug;
 182         for (; argc > 1; argc--, argv++) {
 183                 cp = argv[1];
 184                 do {
 185                         u_int bit;
 186
 187                         if (*cp == '-') {
 188                                 cp++;
 189                                 op = -1;
 190                         } else if (*cp == '+') {
 191                                 cp++;
 192                                 op = 1;
 193                         } else
 194                                 op = 0;
 195                         for (tp = cp; *tp != '\0' && *tp != '+' && *tp != '-';)
 196                                 tp++;
 197                         bit = getflag(cp, tp-cp);
 198                         if (op < 0)
 199                                 ndebug &= ~bit;
 200                         else if (op > 0)
 201                                 ndebug |= bit;
 202                         else {
 203                                 if (bit == 0) {
 204                                         int c = *cp;
 205                                         if (isdigit(c))
 206                                                 bit = strtoul(cp, NULL, 0);
 207                                         else
 208                                                 errx(1, "unknown flag %.*s",
 209                                                         (int)(tp-cp), cp);
 210                                 }
 211                                 ndebug = bit;
 212                         }
 213                 } while (*(cp = tp) != '\0');
 214         }
 215         if (debug != ndebug) {
 216                 printf("%s: 0x%x => ", oid, debug);
 217                 if (sysctlbyname(oid, NULL, NULL, &ndebug, sizeof(ndebug)) < 0)
 218                         err(1, "sysctl-set(%s)", oid);
 219                 printf("0x%x", ndebug);
 220                 debug = ndebug;
 221         } else
 222                 printf("%s: 0x%x", oid, debug);
 223         sep = "<";
 224         for (i = 0; i < N(flags); i++)
 225                 if (debug & flags[i].bit) {
 226                         printf("%s%s", sep, flags[i].name);
 227                         sep = ",";
 228                 }
 229         printf("%s\n", *sep != '<' ? ">" : "");
 230         return 0;
 231 }